中天竺舍衛國祇洹寺圖經 2.10

2.10

佛院之東西北三邊，永巷長列，子無門戶。南從大牆，依方開戶，通於大巷。永巷三方樹林八行交覆，枝葉光陰，不睹僧眾。前佛左邊遶為常，東迴北轉天常也，地上騰轉，准而可知。

On the three sides—east, west, and north—of the Buddha Courtyard, long alleys run in a continuous line, without side doors. To the south, following the great wall, doors open in corresponding directions, leading to the main alley. On three sides of the long alleys, eight rows of trees interlace above, their branches and leaves casting shade, concealing the sangha from view. Circling to the left in front of the Buddha is the usual rule; turning east and wheeling north is the heavenly constant, and ascends and turns above the ground, as may be deduced by analogy.